little help reverting this to original state

https://preview.redd.it/67zd3nkit2lg1.png?width=280&format=png&auto=webp&s=8c74cace0fdf801a2ea45c2396e4915ffe4932a1

how do i revert this to default state ? i tried unhiding all in >Edit but nothing is working

https://preview.redd.it/bcbuv8eqt2lg1.png?width=334&format=png&auto=webp&s=32171210449fca269a935bd5fa9ca5c957b6218b